import sys

# file = sys.stdout
# file.write("hello world")
#
# print('World')

file=open('test.txt','r')
print(file.read(1))
print(file.read(1))
print(file.tell())

# 不需要写close
# with open('test.txt','r',encoding='utf-8') as file2:
#     list2=file2.readlines()
#     print(list2)
#
# str="day day up"
# with open('test.txt','w',encoding='utf-8') as file3:
#     file3.write(str)
#
# list3=['hello11','world22']
# with open('test.txt','a',encoding='utf-8') as file4:
#     file4.writelines(list3)
